JPS6440937A - Image forming device with picture quality adjusting function - Google Patents
Image forming device with picture quality adjusting functionInfo
- Publication number
- JPS6440937A JPS6440937A JP19874687A JP19874687A JPS6440937A JP S6440937 A JPS6440937 A JP S6440937A JP 19874687 A JP19874687 A JP 19874687A JP 19874687 A JP19874687 A JP 19874687A JP S6440937 A JPS6440937 A JP S6440937A
- Authority
- JP
- Japan
- Prior art keywords
- light source
- microcapsule
- auxiliary exposure
- exposure light
- picture quality
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Projection-Type Copiers In General (AREA)
Abstract
PURPOSE:To obtain an image which is free of specific coloring and has superior gradational reproducibility by correcting the gamma of a microcapsule by using an auxiliary exposure light source. CONSTITUTION:The auxiliary exposure light source 6 is arranged opposite in front of the exposure point P of a photoreceptor sheet 3. The auxiliary exposure light source 6 consists of a light source composed of a tungsten lamp, etc., and three kinds of light source lamps 61-63 where filters for transmitting respective light beams of B(blue), G(green), and R(red) are interposed. The auxiliary exposure light source 6 exposes the photoreceptor sheet 3 in a nonimage state right before the photoreceptor sheet 3 is exposed to original reflected light, and the oxygen in the microcapsule is removed to correct the gamma of the microcapsule. Consequently, such trouble that specific coloring is caused in a specific density range is eliminated and the coloring of a formed image is made accurate to improve the picture quality.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19874687A JPS6440937A (en) | 1987-08-07 | 1987-08-07 | Image forming device with picture quality adjusting function |
US07/224,937 US4910550A (en) | 1987-08-07 | 1988-07-27 | Image formation apparatus with supplemental light source |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19874687A JPS6440937A (en) | 1987-08-07 | 1987-08-07 | Image forming device with picture quality adjusting function |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6440937A true JPS6440937A (en) | 1989-02-13 |
Family
ID=16396278
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19874687A Pending JPS6440937A (en) | 1987-08-07 | 1987-08-07 | Image forming device with picture quality adjusting function |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6440937A (en) |
-
1987
- 1987-08-07 JP JP19874687A patent/JPS6440937A/en active Pending
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